UNITED STATES of America, ex rel. Bryan SANDAGER, Plaintiff, v. DELL MARKETING, L.P.; Vion Corporation; ImmixTechnology, Inc.; Government Acquisitions, Inc.; Emtec Federal, Inc.; Force 3, Inc.; Unistar-Sparco Computers, Inc.; Lyme Computer Systems, Inc.; Insight Public Sector, Inc.; Red River Computer Company; MA Federal, Inc.; Promark Technology, Inc.; Word Wide Technology, Inc.; AC Technology, Inc.; A & T Marketing, Inc., d/b/a A & T Networks; PC Specialists, Inc. a/k/a Technology Integration Group; PC Mall Gov, Inc.; and Commercial Data Systems, Inc.; Defendants